LAHORE - Pakistan Petroleum (PPL) has posted earnings of Rs 7.8 billion (EPS Rs6.5) in first quarter of fiscal year 2011 as compared to Rs 5 billion last year (EPS Rs4.2), up by 57 per cent annually. Experts said that higher earnings are primarily due to increase in gas revenues as both production and wellhead gas prices remained on the higher side. Additional gas production from Manzalai lifted overall production while significant jump of 32 percent was witnessed in prices of Sui and Kandhkot fields which are companys two premier gas fields. As a result, total revenues grew by 49 percent to Rs 18.2 billion as compared to Rs 12.2 billion last year. Similarly, field expenditures also soared to Rs 4.4 billion, up 34 percent, mainly owing to increased exploration activities during the period under review. Other income too witnessed an up-tick and settled at Rs 959 million versus Rs 586 million reported in 1QFY10. As anticipated the company did not announce any payout with the result.